Page 42 - 高中数学小题狂做·必修第二册RA·提优版
P. 42

!(0% ! AB'C              !DEFGH!IJK !
           !
           !
         Â" š^_5Ž$50Ì90Jj" ¢ñ'%î”$50
         # % " ( '
           (0 2











        ,'; ! Õ* ª"‰‰òÇÈPÀ+ #Aö! "* ª"‰‰ò

         ÇÈ}É+ #Aö" " &* ª"‰‰òÇÈPÀ¹}É+ #
         Aö!& " "* ª"‰‰òÇÈPÀŸÇÈ}É+ #A
                                                           # % $ÂÃA–EÃ" ªà~°1Ïé¹Ðg20IJ1é
         ö! % " " & * # ! $ "0'$ " * # " $ "0'#% " * # !& " $ "0'*$ "
                                                                       '
                                                           0ߛ0''24 $/0#0'%+0'(&(+0'(&%'$+0'(
         @A* # ! % " $ " * # ! $ &* # " $ )* # !& " $ "0'$&0'#%
                                                           &%+0'02"0',#' ‘Ÿªà~°1Ïé¹ÐgJ1é0
         )0'*$"0',$ " @Aª"‰ÇÈPÀŸÇÈ}É$‰
                                                                     '
                                                           ߛ0''24 $50$;Ì:#0',#'
         òE½ªÚ‰òRE$r#,$?'
                                                           # ' $ªà~„°1Ïé¹Ð20IJ1é0$ØHE#
        !$'; !  Ú,f(6¬^6" +/"$ŒÊ# ŸÀ
                                                               (
         Áî2fŒ$ ¤À%f0' m%f0S" &G2cb" ( ("                    20 # 0'02+(&0'(2+'&0'%2+%&0''2+,&0',2
         m%f0nS" &G(0cb# JaRj$" @A%f0                    +*&0'22+%$&0'$2+2 $ "0',#' ªà~°1ÿÏé¹
                            (0    %                                                        (
         nS$50#*"              "   '                      Ðg20IJ1é0$ØHE# ( %"               # 0'02+(&0'(2
                          2&(0 '                                                          20
        !!'0'(# ! ´è¼"G^¼ú¼Ë" –ˆ¼Ìˆ" MžA                   +2&0'%2+('&0''2+(0&0',2+($&0'22+2 $ "
                             '
        ,E(šÍ$50d0'$ +0'2+0'2+%"0'(0# - ´è¼ 0''2' ;̰1Ïé¹Ðg" ^-RÏÑé# 0',#)0''2 $
         "G^¼ˆ¼Ë" –ˆ¼Ìˆ" MžA,E(šÍ$50                       +'$2",3',2 # 4 $ '
                                                                         '
         d0',+0'$ +0'2 +%"0'03% " ‡–" MžA,E(šÍ !)' x-8? ! a0# ( $ÕAö. 0 M¬Íè¼" &* # . $
                         %
                   %
         $50*"0'(0#+0'03%"0'(#'                               (  ,   (
                                                           "# $ "   ($ '
                                                              %
             $                                        ,
        !"' ! 4¼ý$#fI%"Ñ¢,f" G B "; # "                   # % $ÕAö! #MË" Aö" #NË" Aö# #OË" &
            '2
        30 # c$ &²" e, f%!¦^fØÙ$G G"$&$"                   è±7&Ґz$50# *C"* # !"!" $ & * # !#!# $ &
                                                                                      ,
                                                                                   (
                                    G (% $                 * # "#"# $ & * # "!"! $ ",+# $" ( " @A|}µ¶–
        (% # c$ &²" †@t$50*"          "   "   '                                    %     ,
                                    B 30 '2
        !#'< ! »ÎÁ!–!•;M! N! Oz¬ÍP•$5                     ˆ¼z$50 *"() *C "        ' '
                                                                                    ,
                                                $
                                       ( #
                                                     #
         0“[#* M " * N " * O " &* M"% I ( I % () I ' & I ' ()
                                                           # ' $ÕAö! #MË" Aö" #NË" Aö# #OË" Õ
                                             ( #
                                    "
                                                      $
           $) "% I ( I %&% I ( I '), I ( I % I ' * N "% I % I ( () I ' &
         I %                                               Aö & 0 M˜§šÍ" ÕAö % 0 O˜§šÍ' &MÌ$
                                           "
           #     $) "% I ( I %&% I % I '), I ( I % I ' * O "% I ' I ( (
                                                    ( #
         I ' () I (                                        ) X A ö  Ÿ0 "#"# " !"#"# " !#"#" " "!"## "
             $    #
         ) I % & I % () I ( $) "% I ( I '&% I % I '), I ( I % I '' ‘Ÿ* O  "!#"# " "#!#" " "#!"# " "#"!# " @AM˜§šÍ$
                   #
                                           #
         ) * M"% I % I ') I ( 4 0 " * O) * N"% I ( I ') I % 4 0 " †     (  ,      (  2   *
                          $
                                                  $
                                                           50 * # & $ "# $ &3+# $"         ' š¥Ñ´Rj" N
         * O ˜™'                                                        %         %     '%
                                                           ˜§šÍ$50MM˜§šÍ$50Sª" @AO˜§š
        !&': ! »AöM! N! O! ïYò$50“[# * # ! $"
                                                                               *   3
                                    (         (            Í$50* # % $ "()%+     "   '
         * # " $" * # # $" * # $ $" & * # ! $ "  " * # " $ "  " * # # $ "      '% ($
                                    $         $
                                                                     CDEF% # GH9 ! G9$
          2    2           $    ( ' š.8Rj * # !# $ "0 "
             "
                              "
         $+$ '$  " * # $ $ " $+$ $                         !'; ! š0 &% 0 &%" # 0 &( $ &( 4 0 " &E nR=#‚
                                                                                    %
                                                                    %
                 (          (                          (   E" @A <W- ŸE¥Õ$%!‚œ$–" 5E; E ¥
         * # !$ $ "  " * # "# $ "  " * # #$ $ "0 " @A* # !$ $ "
                 '$         '$                        '$
                                                           Õ$%?›‚œ¥Ñ" E ¥Õ$%!‚œ$ò" @A ;
         " * # ! $ * # $ $" †:¼3'                                         (
                                                                                 %
        !'' x-8? ! a0# ( $/0“1qç`ç0                       ¼3- )' 5 0 5  % ˆ" % 0 &2 0 )' 5 0 " E¥Õ$%!–
   37   38   39   40   41   42   43   44   45   46